Supplementing broilers with different levels of fructooligosaccharides (FOS) under stress conditions, such as higher stocking densities and recycled litter that were not a significant difference in broiler performance, carcass quality and meat quality between the FOS-supplemented groups and the control group (p>0.05). FOS supplementation improved intestinal health by increasing the villus height to crypt depth ratio Lactobacillus populations increased, and Escherichia coli decreased with FOS supplementation. The heterophil-to-lymphocyte ratio was reduced which indicated lower stress.
การใช้ยาต้านจุลชีพส่งผลเสียเป็นอย่างมากโดยทำให้เชื้อทนทานต่อยาเเละตกค้างในเนื้อสัตว์ได้ ปัจจุบันผู้ส่งออกไก่ใช้น้อยลงหรือไม่ใช้พราะบาง ประเทศห้ามใช้ จึงได้มีการนำสารทีมีความปลอดภัยมาใช้ทดแทนยาต้านจุลชีพ พรีไบโอติก ได้เเก่ FOS เป็นหนึ่งในสารเสริมที่เป็นอาหารของจุลินทรีย์ดีที่มีประโยชน์ในลําไส้ ซึ่งช่วยปรับสภาพเเวดล้อมภายในลำไส้ให้ไก่มีสมรรถนะการเจริญเติบโต สัณฐานวิทยาของลำไส้ ภูมิคุ้ม รวมถึงคุณภาพเนื้อเเละซากให้ดีขึ้นได้"
คณะวิศวกรรมศาสตร์
This research suggested natural hemp fiber-reinforced ropes (FRR) polymer usage to reinforce recycled aggregate square concrete columns that contain fired-clay solid brick aggregates in order to reduce the high costs associated with synthetic fiber-reinforced polymers (FRPs). A total of 24 square columns of concrete were fabricated to conduct this study. The samples were tested under a monotonic axial compression load. The variables of interest were the strength of unconfined concrete and the number of FRRlayers. According to the results, the strengthened specimens demonstrated an increased compressive strength and ductility. Notably, the specimens with the smallest unconfined strength demonstrated the largest improvement in compressive strength and ductility. Particularly, the compressive strength and strain were enhanced by up to 181% and 564%, respectively. In order to predict the ultimate confined compressive stress and strain, this study investigated a number of analytical stress–strain models. A comparison of experimental and theoretical findings deduced that only a limited number of strength models resulted in close predictions, whereas an even larger scatter was observed for strain prediction. Machine learning was employed by using neural networks to predict the compressive strength. A dataset comprising 142 specimens strengthened with hemp FRP was extracted from the literature. The neural network was trained on the extracted dataset, and its performance was evaluated for the experimental results of this study, which demonstrated a close agreement.
คณะเทคโนโลยีการเกษตร
"Eco Mango Pack: Eco-friendly Packaging for a Sustainable Future" focuses on developing innovative packaging for Nam Dok Mai mangoes, considering fruit safety, shelf life, and environmental impact. The selected materials include a box made from coconut husk, and dry water hyacinth stems have been utilized as internal cushioning to enhance shock resistance. Additionally, dried coffee grounds are incorporated into the packaging to extend the mango's shelf life. The design also takes into account the needs of small-scale farmers, making the packaging suitable for community enterprise production and reducing production costs. This project aims to add value to Thai agricultural products, support the circular economy concept, and promote the use of environmentally friendly materials in the packaging industry.
คณะวิศวกรรมศาสตร์
In Thailand, the quantity of old tires has been increasing annually, posing a significant environmental challenge due to their non-biodegradable material. However, old tires contain an internal porous structure, which suggests their potential application as sound-absorbing materials. Porosity is a key characteristic that enables materials to trap sound waves, making them effective for noise reduction. Therefore, this study aims to investigate and develop sound-absorbing materials from old tire rubber powder. The methodology involved mixing old tire powder with fresh latex at a ratio of 1:2, followed by drying at a temperature of 120°C for four hours. Subsequently, the physical properties influencing sound absorption, including density, porosity, and water absorption, were analyzed. The results indicated that the sound-absorbing material produced from old tire rubber powder showed a density of 0.96 g/cm³, a porosity value of 0.45, and a water absorption of 11.03%. Therefore, the findings suggest that old tire rubber powder has the potential to be effectively utilized as a sound-absorbing material.